555903129906 has 24 divisors (see below), whose sum is σ = 1207868854140. Its totient is φ = 184776109056.

The previous prime is 555903129889. The next prime is 555903129913. The reversal of 555903129906 is 609921309555.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 554540855625 + 1362274281 = 744675^2 + 36909^2 .

It is a super-2 number, since 2×555903129906² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43737991 + ... + 43750698.

Almost surely, 2^555903129906 is an apocalyptic number.

555903129906 is an abundant number, since it is smaller than the sum of its proper divisors (651965724234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

555903129906 is a wasteful number, since it uses less digits than its factorization.

555903129906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87489050 (or 87489047 counting only the distinct ones).

The product of its (nonzero) digits is 3280500, while the sum is 54.

The spelling of 555903129906 in words is "five hundred fifty-five billion, nine hundred three million, one hundred twenty-nine thousand, nine hundred six".